2N8A

1H, 13C and 15N chemical shift assignments and solution structure for PARP-1 F1F2 domains in complex with a DNA single-strand break


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 78 
  • Conformers Submitted: 78 
  • Selection Criteria: Total, Tensor and NOE xplor energies simultaneously below thresholds (6000, 1500 and 2 kcal.mol-1 respectively) 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural Basis of Detection and Signaling of DNA Single-Strand Breaks by Human PARP-1.

Eustermann, S.Wu, W.F.Langelier, M.F.Yang, J.C.Easton, L.E.Riccio, A.A.Pascal, J.M.Neuhaus, D.

(2015) Mol.Cell 60: 742-754

  • DOI: 10.1016/j.molcel.2015.10.032

  • PubMed Abstract: 
  • Poly(ADP-ribose)polymerase 1 (PARP-1) is a key eukaryotic stress sensor that responds in seconds to DNA single-strand breaks (SSBs), the most frequent genomic damage. A burst of poly(ADP-ribose) synthesis initiates DNA damage response, whereas PARP-1 ...

    Poly(ADP-ribose)polymerase 1 (PARP-1) is a key eukaryotic stress sensor that responds in seconds to DNA single-strand breaks (SSBs), the most frequent genomic damage. A burst of poly(ADP-ribose) synthesis initiates DNA damage response, whereas PARP-1 inhibition kills BRCA-deficient tumor cells selectively, providing the first anti-cancer therapy based on synthetic lethality. However, the mechanism underlying PARP-1's function remained obscure; inherent dynamics of SSBs and PARP-1's multi-domain architecture hindered structural studies. Here we reveal the structural basis of SSB detection and how multi-domain folding underlies the allosteric switch that determines PARP-1's signaling response. Two flexibly linked N-terminal zinc fingers recognize the extreme deformability of SSBs and drive co-operative, stepwise self-assembly of remaining PARP-1 domains to control the activity of the C-terminal catalytic domain. Automodification in cis explains the subsequent release of monomeric PARP-1 from DNA, allowing repair and replication to proceed. Our results provide a molecular framework for understanding PARP inhibitor action and, more generally, allosteric control of dynamic, multi-domain proteins.


    Organizational Affiliation

    Department of Molecular Biology and Biochemistry, Sidney Kimmel Cancer Center, Thomas Jefferson University, 233 South 10th Street, Bluemle Life Sciences Building, Room 804, Philadelphia, PA 19107, USA.,Medical Research Council, Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK. Electronic address: dn@mrc-lmb.cam.ac.uk.,Medical Research Council, Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Poly [ADP-ribose] polymerase 1
A
214Homo sapiensMutation(s): 0 
Gene Names: PARP1 (ADPRT, PPOL)
EC: 2.4.2.30
Find proteins for P09874 (Homo sapiens)
Go to Gene View: PARP1
Go to UniProtKB:  P09874
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (45-MER)B45N/A
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 78 
  • Conformers Submitted: 78 
  • Selection Criteria: Total, Tensor and NOE xplor energies simultaneously below thresholds (6000, 1500 and 2 kcal.mol-1 respectively) 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-12-02
    Type: Initial release
  • Version 1.1: 2015-12-23
    Type: Database references
  • Version 1.2: 2016-10-05
    Type: Structure summary
  • Version 1.3: 2016-10-19
    Type: Other